import React, { Component } from 'react'
// import Demo from './Components/1_setState/Demo'
// import Demo3 from './Components/3_hooks/Dome3.jsx'
import Box from './Components/4_fragment/box.jsx'
export class App extends Component {
  render() {
    return (
      <div className=''>
        {/* <Demo x={1000}></Demo>
         */}
        {/* <Demo3 x={1000}></Demo3> */}
        <Box></Box>
      </div>
    )
  }
}

export default App